답안 #885319

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
885319	2023-12-09T12:57:09 Z	alexdd	Bomb (IZhO17_bomb)	C++17	51 / 100	1000 ms	55720 KB

bomb

#include<iostream>
using namespace std;
int n,m;
char mat[2505][2505];
int sump[2505][2505];
int mars[2505][2505];
bool verif(int cntx, int cnty)
{
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
            mars[i][j]=0;
    for(int i=1;i+cntx-1<=n;i++)
    {
        for(int j=1;j+cnty-1<=m;j++)
        {
            if(sump[i+cntx-1][j+cnty-1] - sump[i+cntx-1][j-1] - sump[i-1][j+cnty-1] + sump[i-1][j-1] == cntx*cnty)///toate is 1
            {
                mars[i][j]++;
                mars[i][j+cnty]--;
                mars[i+cntx][j]--;
                mars[i+cntx][j+cnty]++;
            }
        }
    }
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            mars[i][j] += mars[i-1][j] + mars[i][j-1] - mars[i-1][j-1];
            if(mars[i][j]==0 && mat[i][j]=='1')
                return 0;
        }
    }
    return 1;
}
signed main()
{
    cin>>n>>m;
    int minx=n,miny=m;
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            cin>>mat[i][j];
            sump[i][j] = sump[i-1][j] + sump[i][j-1] - sump[i-1][j-1];
            if(mat[i][j]=='1')
                sump[i][j]++;
        }
    }
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            if(mat[i][j]=='1' && (j==m || mat[i][j+1]=='0'))
            {
                int cnt=0;
                for(int u=j;u>0;u--)
                {
                    if(mat[i][u]=='0')
                        break;
                    cnt++;
                }
                miny = min(miny, cnt);
            }
        }
    }
    for(int i=1;i<=m;i++)
    {
        for(int j=1;j<=n;j++)
        {
            if(mat[j][i]=='1' && (j==n || mat[j+1][i]=='0'))
            {
                int cnt=0;
                for(int u=j;u>0;u--)
                {
                    if(mat[u][i]=='0')
                        break;
                    cnt++;
                }
                minx = min(minx, cnt);
            }
        }
    }
    if(1LL*miny * n * m > 300000000)
    {
        cout<<minx*miny;
        return 0;
    }
    //minx=n;miny=m;
    int poz=0, mxm=0;
    for(int i=minx;i>0;i--)
    {
        if(i*miny <= mxm)
            break;
        while(poz+1<=miny && verif(i,poz+1))
        {
            poz++;
        }
        mxm = max(mxm, i*poz);
    }
    cout<<mxm;
    return 0;
}

Subtask #1

51.0 / 100.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	4700 KB	Output is correct
3	Correct	8 ms	40816 KB	Output is correct
4	Correct	9 ms	40800 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	0 ms	2396 KB	Output is correct
8	Correct	1 ms	4700 KB	Output is correct
9	Correct	1 ms	4700 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	4700 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	4696 KB	Output is correct
17	Correct	2 ms	4700 KB	Output is correct
18	Correct	2 ms	4700 KB	Output is correct
19	Correct	2 ms	4952 KB	Output is correct
20	Correct	2 ms	4956 KB	Output is correct
21	Correct	1 ms	4700 KB	Output is correct
22	Correct	1 ms	4956 KB	Output is correct
23	Correct	3 ms	4956 KB	Output is correct
24	Correct	2 ms	4956 KB	Output is correct
25	Correct	3 ms	4956 KB	Output is correct
26	Correct	2 ms	4956 KB	Output is correct
27	Correct	6 ms	10180 KB	Output is correct
28	Correct	8 ms	10332 KB	Output is correct
29	Correct	48 ms	10764 KB	Output is correct
30	Correct	50 ms	11200 KB	Output is correct
31	Correct	33 ms	10584 KB	Output is correct
32	Correct	43 ms	10844 KB	Output is correct
33	Correct	125 ms	13404 KB	Output is correct
34	Correct	8 ms	10332 KB	Output is correct
35	Correct	70 ms	13404 KB	Output is correct
36	Correct	30 ms	13400 KB	Output is correct
37	Correct	1 ms	4912 KB	Output is correct
38	Correct	247 ms	30884 KB	Output is correct
39	Correct	1 ms	4696 KB	Output is correct
40	Execution timed out	1089 ms	22184 KB	Time limit exceeded
41	Correct	1 ms	4696 KB	Output is correct
42	Correct	3 ms	4956 KB	Output is correct
43	Correct	220 ms	30900 KB	Output is correct
44	Correct	190 ms	13272 KB	Output is correct
45	Incorrect	229 ms	31060 KB	Output isn't correct
46	Correct	859 ms	55720 KB	Output is correct
47	Incorrect	221 ms	30888 KB	Output isn't correct
48	Incorrect	221 ms	30904 KB	Output isn't correct
49	Correct	336 ms	55464 KB	Output is correct
50	Incorrect	228 ms	30904 KB	Output isn't correct
51	Incorrect	217 ms	30932 KB	Output isn't correct
52	Incorrect	215 ms	30884 KB	Output isn't correct
53	Incorrect	223 ms	30888 KB	Output isn't correct
54	Incorrect	212 ms	30888 KB	Output isn't correct
55	Incorrect	214 ms	30888 KB	Output isn't correct
56	Correct	226 ms	31084 KB	Output is correct
57	Incorrect	213 ms	30896 KB	Output isn't correct
58	Incorrect	219 ms	31056 KB	Output isn't correct
59	Incorrect	216 ms	30900 KB	Output isn't correct
60	Correct	983 ms	55616 KB	Output is correct
61	Correct	980 ms	55632 KB	Output is correct
62	Correct	218 ms	31060 KB	Output is correct
63	Correct	270 ms	30908 KB	Output is correct
64	Correct	227 ms	31056 KB	Output is correct
65	Incorrect	222 ms	30888 KB	Output isn't correct
66	Incorrect	225 ms	30884 KB	Output isn't correct
67	Incorrect	217 ms	31056 KB	Output isn't correct
68	Incorrect	240 ms	31168 KB	Output isn't correct
69	Incorrect	212 ms	31060 KB	Output isn't correct
70	Incorrect	135 ms	26448 KB	Output isn't correct
71	Incorrect	214 ms	31164 KB	Output isn't correct
72	Incorrect	210 ms	31060 KB	Output isn't correct
73	Incorrect	212 ms	30896 KB	Output isn't correct
74	Incorrect	211 ms	31156 KB	Output isn't correct
75	Incorrect	209 ms	30964 KB	Output isn't correct
76	Incorrect	211 ms	31052 KB	Output isn't correct
77	Incorrect	215 ms	30888 KB	Output isn't correct
78	Incorrect	237 ms	30896 KB	Output isn't correct
79	Execution timed out	1067 ms	55468 KB	Time limit exceeded
80	Execution timed out	1065 ms	55468 KB	Time limit exceeded
81	Incorrect	211 ms	30888 KB	Output isn't correct
82	Incorrect	256 ms	31056 KB	Output isn't correct
83	Incorrect	218 ms	31312 KB	Output isn't correct
84	Incorrect	208 ms	30916 KB	Output isn't correct
85	Incorrect	211 ms	31060 KB	Output isn't correct
86	Incorrect	222 ms	31076 KB	Output isn't correct
87	Incorrect	216 ms	31060 KB	Output isn't correct
88	Incorrect	225 ms	30896 KB	Output isn't correct
89	Incorrect	240 ms	31064 KB	Output isn't correct
90	Incorrect	138 ms	26452 KB	Output isn't correct
91	Incorrect	220 ms	31092 KB	Output isn't correct
92	Incorrect	237 ms	31080 KB	Output isn't correct
93	Incorrect	232 ms	31012 KB	Output isn't correct
94	Incorrect	237 ms	30900 KB	Output isn't correct
95	Incorrect	223 ms	31028 KB	Output isn't correct
96	Incorrect	215 ms	30888 KB	Output isn't correct
97	Incorrect	226 ms	30896 KB	Output isn't correct
98	Incorrect	234 ms	30888 KB	Output isn't correct
99	Incorrect	218 ms	30888 KB	Output isn't correct
100	Incorrect	222 ms	30888 KB	Output isn't correct